A colonoscopy is a direct visual examination of the large bowel (colon) and rectum. In many cases, the terminal ileum (final part of the small intestine) is also inspected. The procedure is carried out using a colonoscope, which is a thin, flexible tube about 11-13 mm in diameter with a camera and light source at its tip that displays a high definition image on a TV screen. Typically, patients are sedated for the procedure by a specialist anaesthetist.
When necessary, small tissue samples (biopsies) can be taken through a tiny channel within the colonoscope. Commonly a thin instrument is passed through the same channel to enable the removal of polyps (using a thin electric snare wire).
The procedure typically takes between 15 and 40 minutes.
Happy Holidays!
Please note that our rooms will be closed from midday on Friday 20 December and we look forward to welcoming you again from Tuesday 7 January.